Convert Kilometre to Decimetre
Turn Kilometres into Decimetres in an instant. Type a value below to get an accurate km → dm result, with the formula and a quick-reference table.
1 km = 10,000 dm
Quick answer: 1 Kilometre = 10,000 Decimetre
Kilometre to Decimetre conversion table
| Kilometre (km) | Decimetre (dm) |
|---|---|
| 1 km | 10,000 dm |
| 2 km | 20,000 dm |
| 5 km | 50,000 dm |
| 10 km | 100,000 dm |
| 20 km | 200,000 dm |
| 50 km | 500,000 dm |
| 100 km | 1,000,000 dm |
| 500 km | 5,000,000 dm |
| 1,000 km | 10,000,000 dm |
How to convert Kilometre to Decimetre
To convert Kilometres to Decimetres, multiply the value by 10,000.
- Take your measurement in Kilometres.
- Multiply it by 10,000 — the number of Decimetres in one Kilometre.
- The result is the same amount, expressed in Decimetres.
To go the other way, multiply Decimetres by 0.0001 — or simply divide by 10,000.
For example, a 5K race is about 5 km, which is 50,000 dm.
About Kilometre and Decimetre
A kilometre is 1,000 metres, the standard metric unit for longer distances. It is used for road distances, running races and geography almost everywhere outside the United States and the United Kingdom.
A decimetre is one-tenth of a metre, or 10 centimetres. It is rarely used in daily life but appears in science — a cubic decimetre is exactly one litre.
Both the Kilometre and the Decimetre are metric units, so converting between them is just a change of scale: one Kilometre equals 10,000 Decimetres, and the Kilometre is the larger unit.
Other length conversions
Frequently asked questions
How many Decimetres are in a Kilometre?
1 Kilometre equals 10,000 Decimetre (km → dm). To convert any amount, multiply the number of Kilometres by 10,000.
How do I convert Kilometre to Decimetre?
Enter the number of Kilometres in the converter above and read the result in Decimetres. It applies the exact km → dm factor instantly, with full precision.
Is the Kilometre to Decimetre converter free?
Yes — it is completely free and unlimited, needs no sign-up, and runs right in your browser, so it is instant and private.
Is the conversion accurate?
Yes. It uses the internationally defined length factors and full floating-point precision, then rounds the display to a clean, readable number.